DS Laboratories Spectral Booster Hair Density Serum 60 mL — Water-Based, Non-Greasy Peptide Leave-In

DS Laboratories Spectral Booster is a lightweight, water-based leave-in serum formulated to make hair look fuller and thicker while delivering evenly dispersed peptides to the scalp.

Designed as a daily addition to scalp care, this 60 mL serum (formerly Spectral.F7) blends Astressin-B peptide, copper peptides, and DS Labs’ nanosome delivery to provide consistent topical coverage without greasiness. It layers easily with styling products and absorbs quickly, targeting areas that appear sparse to improve the appearance of hair density and resilience when used regularly.

How does Spectral Booster fit into a daily hair routine?

Apply to dry or towel-dried hair and gently massage into the scalp once or twice daily to maintain even ingredient distribution. Because it’s water-based and non-greasy, it sits well under leave-in conditioners and styling products without buildup.

• Use on clean, dry or damp scalp for best absorption
• Apply a few drops to targeted areas and massage gently
• Compatible with most topical styling and grooming products
• Daily use helps maintain the appearance of thicker hair over time

What key ingredients are in this serum and why they matter?

Spectral Booster combines Astressin-B peptide and copper peptides with DS Labs’ nanosome micro-encapsulation so active compounds spread evenly across the scalp. These ingredients are chosen to support a refreshed scalp appearance and stronger-feeling hair when the product is used consistently.

• Astressin-B peptide for targeted peptide support
• Copper peptides for scalp and hair resilience appearance
• Nanosome technology for even topical delivery across the scalp
• Water-based base to prevent oily, heavy residue

Will Spectral Booster weigh hair down or leave residue?

No — the formula is intentionally lightweight and absorbs quickly, so it won’t leave sticky or greasy buildup. That makes it suitable for fine hair types and for users who want a fuller-looking finish without added weight.

• Fast-absorbing water-based serum
• Non-greasy texture that layers well
• Suitable for fine to medium hair types
• No visible residue when applied correctly

How should results be expected and measured?

Results depend on consistent, long-term use and vary by individual. Users typically monitor changes in how dense and resilient hair appears over weeks to months rather than expecting immediate transformation.

• Track visual density in photos taken before starting
• Use daily as directed for several weeks to months
• Combine with a gentle scalp routine for best cosmetic result
• Consult a professional if you have scalp conditions or concerns

Who is this for: Spectral Booster is aimed at men and women who want a lightweight, leave-in serum to help hair appear fuller and stronger without heavy oils. It suits people with fine to medium hair looking for daily scalp support and those who prefer a water-based formula that layers under styling products.

Ingredients

AQUA, COPPER TRIPEPTIDE-1, PHENOXYETHANOL, CAPRYLYL GLYCOL, PROPANEDIOL, LECITHIN, OCTAPEPTIDE-2, ACETYL TRIPEPTIDE-45 D-PHENYLALANYL OCTAPEPTIDE-14 NORLEUCYL PENTAPEPTIDE-38 METHYL LEUCYL DECAPEPTIDE-26 NORLEUCYL GLUTAMYL METHYL LEUCYL ISOLEUCINAMIDE, DISODIUM EDTA